Metal piling structure.



G. TRIMBORN.

METAL FILING STRUCTURE.

- APPLICATION FILED 1120. 29, 1911.

1',O74,665, Patented Oct. 7,1913.

Z Z/2161461 I 7:;1 1/ ear/0w CONRAD TRIMBORN, OF MIL'WAUKEE, WISCONSIN.

METAL FILING STRUCTURE.

Specification of Letters Patent.

Patented Oct. 7, 1913.

Application filed December 29, 1911. Serial No. 668,401..

T 0 all whom it may concern:

Be it known that I, CONRAD Tnnvmonn, a citizen of the United States, residing at Milwaukee, county of Milwaukee, and State of Wisconsin, have invented new and useful Inuarovements in Metal Piling Structures, of which the following is a specification.

My invention relates to improvements in sheet metal piling designed especially for use in construction of cofl'erdams.

The object of my invention is to provide a standard unit of which any desired number can be used and each of which is adapted to interlock with an adjacent unit in such a manner as to receive an impervious packing, whereby the units are not only rigidly bound together, but the wall formed thereby is made water tight.

In the drawings-Figure 1 is a plan view of a wall formed of my improved pile units. Fig. 2 is a face view (front or rear), of one of the units.

Like parts are identified by the same reference characters in both views.

Each of the units comprises a web member A, provided along one side margin with outwardly extending angular flanges B, similar flanges B being formed on the opposing margin. The side edges of the flanges B are turned abruptly outwardly, as shown at b, in a plane substantially at right angles to the web flange A. The marginal portions of the flanges B also turn abruptly outwardly at b and then inwardly at C, forming hook shaped members having grooves D along their inner faces. These grooves D are adapted to receive the outwardly turned edges 6 of flanges B of another unit, the construction being such that the edge portions 6 of the flanges B on one unit may slide into interlocking relation with another unit by moving longitudinally to such position in the grooves D of such other unit.

When the units are assembled in interlocking relation as above explained, a cavity E is formed between the flanges B, B of one unit and flanges B, B of the next. This cavity E extends from one end of the interlocked units to the other, and is of uniform dimensions throughout. It may therefore be easily filled with a suitable packing, such as clay, which may be rammed into posi tion to form a water tight packing and to also cause the interlocked portions of said units to bind rigidly upon each other.

Units formed as above described, may be easily driven into the soil to a great depth, since the edges of the webs A and flanges B, B, together with their interlocking margins, offer little resistance to downward pressure or impact. Each unit being like every other, no selection is required in order to fit them together. Each may be formed of rolled steel or other metal having great strength in proportion to weight, whereby each successive unit may be easily lifted into position for end engagement with the interlocking portions of the flange of another unit and allowed to slide vertically into place on such other unit.

It will be observed that the flanges B, B, are substantially of equal dimensions and are equally divergent from the plane of the web A. The same is true of the flanges B on the opposing edge margin of the unit. The flanges are therefore symmetrically arranged with reference to the webs and the filling or packing in the cavities E will therefore be symmetrically disposed with reference to the web. For this reason, a pile wall produced by these units will possess great strength and power of resistance to strains from either side, whereas units which can be interlocked without end to end movement and in which the flanges are not symmetrical with reference to the web, are easily displaced under heavy pressures, and particularly so if subjected to pressures upon both sides.

I claim 1. A metal piling unit comprising a web having one side margin provided with angularly divergent flanges formed with out wardly turned edges and having its other margin provided with angularly divergent flanges provided with edge portions having grooves in their inner faces adapted to receive the outwardly turned edge margins of the flanges of a like unit.

2. A sheet metal piling comprising a set of like units, each unit having one vertical margin provided with a pair of outwardly and angularly extending like flanges, the free marginal portions of which are provided with integral grooves, and the other vertical margin of the unit being provided with a pair of angularly disposed like flanges having their free margins turned abruptly outwardly and adapted to engage in the grooves of the flanges of an adjacent unit in a plane substantially at right angles to the plane of the assembled units.

3. A metal piling unit comprising a web portion having along one margin, diagonally extending divergent flanges of sub stantially equal dimensions and provided with outwardly turned edge portions, said web having along its opposing margin a set of diagonally extending flanges of equal dimensions provided with edge portions, hook shape in cross section, and forming grooves to receive the outwardly turned edges of the flanges on another unit, said flanges in each set being substantially equally" divergent from the plane of said web and adapted to cooperate with the interlocking flanges of the adjacent unit to form an unobstructed cavity adapted to receive a packing in'a position symmetrically disposed with reference to the webs of the respective units, substantially as described.

In testimony whereof I aflix my signature in the presence of two witnesses. V

CONRAD TRIMBORN. lVitnesses V V LEVERETT 0. WHEELER, I. D. BREMER.

Copies of this patent may be obtained for five cents each, by addressing the f Commissioner .of Patents, Washington, D. 0. v 

